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cpp-virtual

16 posts

How to Implement Interfaces Using Abstract Class in C++

Last Updated: 06 August 2025

C++ doesn't have built-in functionality of interfaces like other programming languages such as Java. However, interfaces can be implemented in C++ using the abstract class...read more

cpp-inheritance

C++-Inheritance

C++-Virtual Functions

Abstract Class and Interface

When to Use Virtual Destructors in C++?

Last Updated: 25 January 2024

In C++, destructors are special members of a class that frees memory occupied by an object when it goes out of scope. A virtual destructor is a special form of destructor ...read more

cpp-inheritance

C++ Program to Create an Interface

Last Updated: 23 July 2025

Interfaces are a feature of Java that allows us to define an abstract type that defines the behaviour of a class. In C++, there is no concept of interfaces, but we can cre...read more

cpp-inheritance

C++ Misc Programs

Difference between Virtual function and Pure virtual function in C++

Last Updated: 12 July 2025

Virtual Function in C++ A virtual function is a member function which is declared within a base class and is re-defined(Overridden) by a derived class. When you refer to a...read more

Technical Scripter

Difference Between

Technical Scripter 2019

C++-Virtual Functions

Virtual Functions

Is body of a Default Constructor blank in C++?

Last Updated: 11 July 2025

The answer to this question depends upon 2 scenarios:Scenario 1: When there is a Virtual function in the program: In this scenario, compiler automatically creates virtual ...read more

Technical Scripter

Programming Language

cpp-constructor

Early binding and Late binding in C++

Last Updated: 05 February 2018

Binding refers to the process of converting identifiers (such as variable and performance names) into addresses. Binding is done for each variable and functions. For funct...read more

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cpp-inheritance

override identifier in C++

Last Updated: 27 November 2024

Function overriding is a redefinition of the base class function in its derived class with the same signature i.e. return type and parameters.But there may be situations w...read more

cpp-inheritance

Virtual Function in C++

Last Updated: 27 August 2026

A virtual function is a member function declared with the virtual keyword in a base class and overridden in a derived class. It enables runtime polymorphism by allowing th...read more

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cpp-inheritance

Calling virtual methods in constructor/destructor in C++

Last Updated: 23 July 2025

Prerequisite: Virtual Function in C++Calling virtual functions from a constructor or destructor is considered dangerous most of the times and must be avoided whenever poss...read more

cpp-inheritance

What happens when a virtual function is called inside a non-virtual function in C++

Last Updated: 23 July 2025

Predict the output of the following simple C++ program without any virtual function. CPP #include iostreamusing namespace std;class Base{public: void print()...read more

cpp-inheritance

Pure Virtual Destructor in C++

Last Updated: 23 July 2025

A pure virtual destructor can be declared in C++. After a destructor has been created as a pure virtual object(instance of a class), where the destructor body is provided....read more

cpp-constructor

Pure Virtual Functions and Abstract Classes in C++

Last Updated: 15 October 2025

A pure virtual function is a virtual function with no implementation in the base class, declared using = 0. A class with at least one pure virtual function is an abstract ...read more

cpp-inheritance

C++ final Specifier

Last Updated: 07 July 2026

The final specifier was introduced in C++11 to prevent further modification of class hierarchies. It can be used to stop a virtual function from being overridden or to pre...read more

Can Virtual Functions be Inlined in C++?

Last Updated: 23 July 2025

Virtual functions are member functions that are declared in the base class using the keyword virtual and can be overridden by the derived class. They are used to achieve R...read more

Virtual Functions and Runtime Polymorphism in C++

Last Updated: 19 January 2026

A virtual function is a member function declared in a base class using the virtual keyword and overridden in a derived class. Virtual functions enable runtime polymorphism...read more

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cpp-inheritance

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